Initial Commit for Java.util.Date Extension Support + LocalDateTime Unit Test

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/date/DateValueReader.java

@@ -0,0 +1,25 @@
+package com.fasterxml.jackson.jr.extension.javatime.date;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.jr.ob.api.ValueReader;
+import com.fasterxml.jackson.jr.ob.impl.JSONReader;
+
+import java.io.IOException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class DateValueReader extends ValueReader {
+    protected DateValueReader() {
+        super(Date.class);
+    }
+
+    @Override
+    public Object read(JSONReader reader, JsonParser p) throws IOException {
+        try {
+            return new SimpleDateFormat().parse(p.getText());
+        } catch (ParseException e) {
+            throw new IOException(e);
+        }
+    }
+}

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/date/DateValueWriter.java

@@ -0,0 +1,21 @@
+package com.fasterxml.jackson.jr.extension.javatime.date;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.jr.ob.api.ValueWriter;
+import com.fasterxml.jackson.jr.ob.impl.JSONWriter;
+
+import java.io.IOException;
+import java.util.Date;
+
+public class DateValueWriter implements ValueWriter {
+    @Override
+    public void writeValue(JSONWriter context, JsonGenerator g, Object value) throws IOException {
+        String date = value.toString();
+        context.writeValue(date);
+    }
+
+    @Override
+    public Class<?> valueType() {
+        return Date.class;
+    }
+}

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/date/JacksonJrJavaDateExtension.java

@@ -0,0 +1,20 @@
+package com.fasterxml.jackson.jr.extension.javatime.date;
+
+import com.fasterxml.jackson.jr.ob.JacksonJrExtension;
+import com.fasterxml.jackson.jr.ob.api.ExtensionContext;
+
+public class JacksonJrJavaDateExtension extends JacksonJrExtension {
+    static final JavaDateReaderWriterProvider DEFAULT_RW_PROVIDER = new JavaDateReaderWriterProvider();
+
+    private JavaDateReaderWriterProvider readerWriterProvider = DEFAULT_RW_PROVIDER;
+
+    @Override
+    protected void register(ExtensionContext ctxt) {
+        ctxt.insertProvider(readerWriterProvider);
+    }
+
+    public JacksonJrJavaDateExtension with(JavaDateReaderWriterProvider p) {
+        readerWriterProvider = p;
+        return this;
+    }
+}

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/date/JavaDateReaderWriterProvider.java

@@ -0,0 +1,24 @@
+package com.fasterxml.jackson.jr.extension.javatime.date;
+
+import com.fasterxml.jackson.jr.ob.api.ReaderWriterProvider;
+import com.fasterxml.jackson.jr.ob.api.ValueReader;
+import com.fasterxml.jackson.jr.ob.api.ValueWriter;
+import com.fasterxml.jackson.jr.ob.impl.JSONReader;
+import com.fasterxml.jackson.jr.ob.impl.JSONWriter;
+
+import java.util.Date;
+
+public class JavaDateReaderWriterProvider extends ReaderWriterProvider {
+    public JavaDateReaderWriterProvider() {
+    }
+
+    @Override
+    public ValueReader findValueReader(JSONReader readContext, Class<?> type) {
+        return Date.class.isAssignableFrom(type) ? new DateValueReader() : null;
+    }
+
+    @Override
+    public ValueWriter findValueWriter(JSONWriter writeContext, Class<?> type) {
+        return Date.class.isAssignableFrom(type) ? new DateValueWriter() : null;
+    }
+}

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/JacksonJrJavaTimeExtension.java → jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/localdatetime/JacksonJrJavaTimeExtension.java

@@ -1,10 +1,10 @@
-package com.fasterxml.jackson.jr.extension.javatime;
+package com.fasterxml.jackson.jr.extension.javatime.localdatetime;
 
 import com.fasterxml.jackson.jr.ob.JacksonJrExtension;
 import com.fasterxml.jackson.jr.ob.api.ExtensionContext;
 
 public class JacksonJrJavaTimeExtension extends JacksonJrExtension {
-    final static JavaTimeReaderWriterProvider DEFAULT_RW_PROVIDER = new JavaTimeReaderWriterProvider();
+    static final JavaTimeReaderWriterProvider DEFAULT_RW_PROVIDER = new JavaTimeReaderWriterProvider();
 
     private JavaTimeReaderWriterProvider readerWriterProvider = DEFAULT_RW_PROVIDER;
 

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/JavaTimeReaderWriterProvider.java → jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/localdatetime/JavaTimeReaderWriterProvider.java

@@ -1,4 +1,4 @@
-package com.fasterxml.jackson.jr.extension.javatime;
+package com.fasterxml.jackson.jr.extension.javatime.localdatetime;
 
 import com.fasterxml.jackson.jr.ob.api.ReaderWriterProvider;
 import com.fasterxml.jackson.jr.ob.api.ValueReader;
@@ -37,7 +37,7 @@ public ValueWriter findValueWriter(JSONWriter writeContext, Class<?> type) {
      *  </li>
      *</ul>
      * 
-     * @param formatter
+     * @param formatter {@link DateTimeFormatter} instance
      *
      * @return This provider instance for call chaining
      */

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/LocalDateTimeValueReader.java → jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/localdatetime/LocalDateTimeValueReader.java

@@ -1,4 +1,4 @@
-package com.fasterxml.jackson.jr.extension.javatime;
+package com.fasterxml.jackson.jr.extension.javatime.localdatetime;
 
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.jr.ob.api.ValueReader;

jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/LocalDateTimeValueWriter.java → jr-extension-javatime/src/main/java/com/fasterxml/jackson/jr/extension/javatime/localdatetime/LocalDateTimeValueWriter.java

@@ -1,4 +1,4 @@
-package com.fasterxml.jackson.jr.extension.javatime;
+package com.fasterxml.jackson.jr.extension.javatime.localdatetime;
 
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.jr.ob.api.ValueWriter;

jr-extension-javatime/src/test/java/com/fasterxml/jackson/jr/extension/javatime/JacksonJrJavaExtensionsTest.java

@@ -0,0 +1,52 @@
+package com.fasterxml.jackson.jr.extension.javatime;
+
+import com.fasterxml.jackson.jr.extension.javatime.localdatetime.JacksonJrJavaTimeExtension;
+import com.fasterxml.jackson.jr.extension.javatime.date.JacksonJrJavaDateExtension;
+import com.fasterxml.jackson.jr.ob.JSON;
+import junit.framework.TestCase;
+
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.util.Date;
+
+public class JacksonJrJavaExtensionsTest extends TestCase {
+
+    public void testLocalDateTimeTest() throws Exception {
+        //Register the extension
+        JSON json = JSON.builder().register(new JacksonJrJavaTimeExtension()).build();
+
+        //Test
+        LocalDateTime sampleDateTime = LocalDateTime.of(2024, 2, 25, 2, 32);
+        String expectedOutput = "{\"aVariable\":\"A_VARIABLE_TEST\",\"dateTime\":\"2024-02-25T02:32:00\"}";
+        String aVariableTest = json.asString(new LocalDateTimeClass(sampleDateTime, "A_VARIABLE_TEST"));
+        assertEquals(aVariableTest, expectedOutput);
+    }
+
+    public void testDateTest() throws Exception {
+        //Register the extension
+        JSON json = JSON.builder().register(new JacksonJrJavaDateExtension()).build();
+        Date date = Date.from(Instant.now());
+        String expectedOutput = "{\"aVariable\":\"A_VARIABLE_TEST\",\"date\":\""+ date +"\"}";
+        String aVariableTest = json.asString(new DateClass(date, "A_VARIABLE_TEST"));
+        assertEquals(aVariableTest, expectedOutput);
+    }
+}
+
+class DateClass {
+    public Date date;
+    public String aVariable;
+
+    public DateClass(Date date, String aVariable) {
+        this.date = date;
+        this.aVariable = aVariable;
+    }
+}
+
+class LocalDateTimeClass {
+    public LocalDateTime dateTime;
+    public String aVariable;
+    public LocalDateTimeClass(LocalDateTime dateTime, String aVariable) {
+        this.dateTime = dateTime;
+        this.aVariable = aVariable;
+    }
+}